(19)
(11) EP 2 118 693 A1

(12)

(43) Date of publication:
18.11.2009 Bulletin 2009/47

(21) Application number: 07704812.2

(22) Date of filing: 23.02.2007
(51) International Patent Classification (IPC): 
G02B 5/18(2006.01)
(86) International application number:
PCT/FI2007/000044
(87) International publication number:
WO 2008/102049 (28.08.2008 Gazette 2008/35)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

(71) Applicant: Nanocomp Ltd.
80100 Joensuu (FI)

(72) Inventors:
  • VALLIUS, Tuomas
    FI-80110 Joensuu (FI)
  • PIETARINEN, Juha
    FI-80140 Joensuu (FI)
  • LAAKKONEN, Pasi
    FI-80140 Joensuu (FI)

(74) Representative: Helino, Timo Kalervo et al
Papula Oy Mechelininkatu 1 a
00180 Helsinki
00180 Helsinki (FI)

   


(54) A METHOD FOR DESIGNING A DIFFRACTION GRATING STRUCTURE AND A DIFFRACTION GRATING STRUCTURE